WEARABLE DEVICE AND METHOD FOR OUTPUTTING VIRTUAL IMAGE

  • US 20160139411A1
  • Filed: 11/13/2015
  • Published: 05/19/2016
  • Est. Priority Date: 11/18/2014
  • Status: Active Grant
First Claim
Patent Images

1. A method of outputting a virtual image by a wearable device, the method comprising:

  • radiating a light to an eye of a user;

    acquiring retina image information by receiving a light which is reflected from a retina;

    calculating a focal length of a crystalline lens based on the acquired retina image information; and

    determining a viewing distance of the user based on the calculated focal length.

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